Brian Borsari

Peer influences on college drinking: A review of the research

Peer pressure is consistently implicated in the excessive drinking of college students. However, both theory and empirical findings suggest that peer pressure is a combination of three distinct influences: overt offers of alcohol, modeling, and social norms. Overt offers of alcohol can range from polite gestures to intense goading or commands to drink. Modeling occurs when the students behavior corresponds to another students concurrent drinking behavior. Perceived social norms can serve to make excessive alcohol use appear common and acceptable to the student. This review critically examines the literature on each form of peer influence and provides suggestions for future research.

Two brief alcohol interventions for mandated college students.

Encouraging but limited research indicates that brief motivational interventions may be an effective way to reduce heavy episodic drinking in college students. At 2 campuses, students (83% male) mandated to a substance use prevention program were randomly assigned to 1 of 2 individually administered conditions: (a) a brief motivational interview (BMI; n = 34) or (b) an alcohol education session (AE; n = 30). Students in the BMI condition reported fewer alcohol-related problems than the AE students at 3-and 6-month assessments. Trends toward reductions in number of binge drinking episodes and typical blood alcohol levels were seen in both groups. Process measures confirmed the integrity of both interventions. The findings demonstrate that mandated BMIs can reduce alcohol problems in students referred for alcohol violations.

How the quality of peer relationships influences college alcohol use.

Peer relationships are consistently linked to alcohol use in college students. However, this disparate literature often reveals contradictory findings regarding the precise mechanisms of peer influence. In this review, we use an organisational framework based on social learning theory (SLT) to demonstrate how the quality of peer relationships may influence personal alcohol use. We propose that the quality of peer relationships enhance the influence of social reinforcement, modelling and cognitive processes on personal alcohol use. Research indicates that the quality of peer relationships influences drinking via three pathways: the lack or breakdown of quality peer relationships, alcohol use being an integral part of peer interactions, and if peers disapprove of alcohol use or do not drink. This conceptualisation of peer influence informs the consistent finding of gender differences in college student drinking. Limitations of the reviewed research include reliance on cross-sectional surveys, self-report and homogeneous populations. Future directions for research on quality peer relationships involve detailed longitudinal assessment and the application of advanced statistical methods.

Understanding Fraternity Drinking: Five Recurring Themes in the Literature, 1980–1998

In light of widespread concern about alcohol abuse on college campuses, the authors review the empirical literature concerning fraternity drinking published since 1980. The review is structured according to 5 themes that emerge from the literature: (a) the continuity between high school and college drinking, (b) the self-selection of heavy drinkers into environments that support heavy drinking, (c) the central role of alcohol in fraternity socialization, (d) the misperception of drinking norms, and (e) the enabling environment of the fraternity house. The literature is summarized for the benefit of those who wish to better understand the role of alcohol use in the fraternity system.

Web-based alcohol prevention for incoming college students: A randomized controlled trial

College students are an at-risk population based on their heavy alcohol consumption and associated consequences. First-year students are at particular risk due to greater freedom and access to alcohol on campus. Web-based (electronic) interventions (e-interventions) are being rapidly adopted as a universal approach to prevent high-risk drinking, but have not been well evaluated. The objective of this study was to investigate the effectiveness of the two most widely adopted EIs, AlcoholEdu and The Alcohol eCHECKUP TO GO (e-Chug), in reducing both alcohol use and alcohol-related consequences in incoming college students. To do so, we conducted a 3-group randomized trial (N=82) comparing AlcoholEdu and e-Chug to an assessment-only control group. Compared to the assessment-only control group, participants in the AlcoholEdu and e-Chug groups reported lower levels of alcohol use across multiple measures at 1-month follow-up. Participants who received AlcoholEdu showed significantly fewer lower alcohol-related consequences than assessment-only controls, while there was a trend for reduced consequences in participants who received e-Chug versus assessment-only. Findings indicate that e-intervention is a promising prevention approach to address the problem of college student alcohol consumption, especially for campuses that have limited resources.

Fraternity and sorority involvement, social influences, and alcohol use among college students: A prospective examination.

This study used latent growth curve modeling to investigate whether the effects of gender and Greek involvement on alcohol use and problems over the first 2 years of college are best characterized by selection, socialization, or reciprocal influence processes. Three social influences (alcohol offers, social modeling, and perceived norms) were examined as potential mediators of these effects. Undergraduate participants (N = 388) completed self-report measures prior to enrollment and in the spring of their freshmen and sophomore years. Male gender and involvement in the Greek system were associated with greater alcohol use and problems prior to college. Both gender and Greek involvement significantly predicted increases in alcohol use and problems over the first 2 years of college. Cross-domain analyses provided strong support for a mediational role of each of the social influence constructs on alcohol use and problems prior to matriculation, and prematriculation social modeling and alcohol offers mediated relations between Greek involvement and changes in alcohol use over time. Findings suggest that students, particularly men, who affiliate with Greek organizations constitute an at-risk group prior to entering college, suggesting the need for selected interventions with this population, which should take place before or during the pledging process.

The technical hypothesis of motivational interviewing: a meta-analysis of MI's key causal model.

OBJECTIVE The technical hypothesis of motivational interviewing (MI) posits that therapist-implemented MI skills are related to client speech regarding behavior change and that client speech predicts client outcome. The current meta-analysis is the first aggregate test of this proposed causal model. METHOD A systematic literature review, using stringent inclusion criteria, identified 16 reports describing 12 primary studies. We used review methods to calculate the inverse-variance-weighted pooled correlation coefficient for the therapist-to-client and the client-to-outcome paths across multiple targeted behaviors (i.e., alcohol or illicit drug use, other addictive behaviors). RESULTS Therapist MI-consistent skills were correlated with more client language in favor of behavior change (i.e., change talk; r = .26, p < .0001), but not less client language against behavior change (i.e., sustain talk; r = .10, p = .09). MI-inconsistent skills were associated with less change talk (r = -.17, p = .001) as well as more sustain talk (r = .07, p = .009). Among these studies, client change talk was not associated with follow-up outcome (r = .06, p = .41), but sustain talk was associated with worse outcome (r = -.24, p = .001). In addition, studies examining composite client language (e.g., an average of negative and positive statements) showed an overall positive relationship with client behavior change (r = .12, p = .006; k = 6). CONCLUSIONS This meta-analysis provides an initial test and partial support for a key causal model of MI efficacy. Recommendations for MI practitioners, clinical supervisors, and process researchers are provided.

Differential Utility of Three Indexes of Risky Drinking for Predicting Alcohol Problems in College Students

This study evaluated the relationship between alcohol-related problems and 3 indexes of risky drinking in college student drinkers: number of drinks consumed per week, frequency of binge drinking, and estimated blood alcohol levels (BALs). Use of 2 independent samples (N1 = 204, N2 = 181) allowed a cross-validation of obtained associations. Results indicated that neither binge drinking frequency nor BAL were more highly related to alcohol-related problems than was weekly drinking. Furthermore, BAL did not provide unique explanatory power in accounting for alcohol-related problems; mixed results were obtained regarding the relationship of binge drinking estimates with problems.

Brief motivational and parent interventions for college students: A randomized factorial study

OBJECTIVE Using a randomized factorial design, we examined the efficacy of a brief motivational intervention (BMI) and a parent-based intervention (PBI) as universal preventive interventions to reduce alcohol use among incoming college students. METHOD Participants (N = 1,014) were assessed prior to matriculation and at 10 months and 22 months postbaseline. Two-part latent growth modeling was used to simultaneously examine initiation and growth in heavy episodic drinking and alcohol-related consequences. RESULTS This study retained 90.8% (n = 921) of randomized students at the 10-month follow-up and 84.0% (n = 852) of randomized students at the 22-month follow-up. BMI participants were significantly less likely than non-BMI participants to initiate heavy episodic drinking and to begin experiencing alcohol-related consequences. Effect sizes were minimal at 10 months (Cohens h ranged from 0.02 to 0.07) and were small at 22 months (hs ranged from 0.15 to 0.22). A significant BMI x PBI interaction revealed that students receiving both the BMI and the PBI were significantly less likely to report the onset of consequences beyond the sum of the individual intervention effects (h = 0.08 at 10 months, and h = 0.21 at 22 months). Hypothesized direct BMI effects for reductions in heavy episodic drinking and consequences were not observed. Significant mediated effects via changes in descriptive norms were present for both growth and initiation of heavy episodic drinking and consequences. CONCLUSIONS To our knowledge, the current study is the first to provide support for BMI as a universal preventive intervention for incoming college students. Although hypothesized PBI main effects were not found, mediation analyses suggest future refinements could enhance PBI effectiveness.

Relationships between binge drinking and substance-free reinforcement in a sample of college students A preliminary investigation

Heavy episodic drinking is a relatively common phenomenon among college students, and students who engage in binge drinking are at increased risk for a variety of adverse consequences. This paper investigates relationships between substance use and reinforcement derived from specific categories of substance-free activities among a sample of 256 college undergraduates. Data from a standardized behavioral inventory were used to compare the frequency, pleasure, and reinforcement potential of substance-free events and activities experienced by binge drinkers and a comparison group. Binge drinkers reported significantly lower scores across a variety of substance-free activity categories and, in the majority of the cases, the relationship between binge drinking and decreased reinforcement density remained significant after accounting for the effects of the use of other drugs and demographic variables. These results are consistent with a growing body of evidence linking substance use to deprivation of substance-free reinforcement.